| Locality | Mineral(s) |
|---|
| Benson ore banks, Anne Arundel County, Maryland, USA | β Goethite, β Hematite, β Siderite |
| Garey Ore Bank, Anne Arundel County, Maryland, USA | β Goethite, β Hematite, β Hyalite, β Opal, β Siderite, β Specularite |
| Hollins Ore Bank, Anne Arundel County, Maryland, USA | β Goethite, β Hematite |
| Plumbmer ore banks, Anne Arundel County, Maryland, USA | β Goethite, β Hematite, β Siderite, β Slag |
| Ruth Ore Bank, Anne Arundel County, Maryland, USA | β Goethite, β Hematite, β Specularite |
| Soper Hall Ore Bank, Anne Arundel County, Maryland, USA | β Clay, β Siderite, β Specularite |
| Staurolite locality, Rockland, Baltimore County, Maryland, USA | β Biotite, β Kyanite |
| Lord Baltimore Drive Quartz occurrence area, Windsor Mill, Baltimore County, Maryland, USA | β Amber Opal, β Anthophyllite, β Bronzite, β Carnelian, β Chlorite Group, β Chromite, β Chrysotile, β Common Opal, β Enstatite, β Jasper, β Jelly Opal, β Magnesite, β Magnetite, β Serpentine Subgroup, β Specularite, β Talc |
| Patapsco Mine (Finksburg Mine; Orchard Mine), Patapsco Mines, Finksburg, Carroll County, Maryland, USA | β Actinolite, β Bornite, β Chrysocolla, β Malachite, β Quartz |
| Medford Quarry, Medford, Carroll County, Maryland, USA | β Goethite, β Siderite |
| William Carbaugh's Quarry, New Windsor, Carroll County, Maryland, USA | β Bornite, β Calcite, β Chalcopyrite, β Chlorite Group, β Covellite, β Galena, β Malachite, β Pyrite, β Quartz, β Sphalerite |
| Bornite pit, Springfield Mine (Mr. Tysons Mine; Sykesville Mine), Sykesville, Carroll County, Maryland, USA | β Actinolite, β Goethite |
| Churchville Quarry (Davis Quarry Company Inc.), Harford County, Maryland, USA | β Quartz |
| Havre De Grace Quarry, Harford County, Maryland, USA | β Calcite, β Pyrrhotite, β Sphalerite |
| Brooks Ore Bank, Hanover, Howard County, Maryland, USA | β Ferricrete, β Goethite, β Lignite, β Limonite, β Siderite |
| Savage Gabbro Quarry, Savage, Howard County, Maryland, USA | β Epidote, β Goethite, β Hematite, β Laumontite, β Quartz |
| Tschiffely (Wheatlands) Aggregate Quarry, Montgomery County, Maryland, USA | β Antigorite, β Chalcedony, β Chlorite Group, β Chromite, β Chrysotile, β Dolomite, β Magnetite, β Manganese Oxides, β Marmolite, β Quartz, β Schist, β Serpentine Subgroup, β Talc, β Tremolite |
| White Oak, Montgomery County, Maryland, USA | β Fuchsite |
| Corundum Hill, Unionville, Newlin Township, Chester County, Pennsylvania, USA | β Fluorapatite, β Goethite, β Hematite, β Jasper |
| Unnamed Calcite occurrence, Boiling Springs, Cumberland County, Pennsylvania, USA | β Calcite, β Goethite, β Iron oxide, β Limestone, β Limonite, β Manganese Oxides, β Pyrite, β Talc |
| Meckley's Quarry, Mandata, Northumberland County, Pennsylvania, USA | β Gypsum |
| National Limestone Quarry No. 1, Paxtonville, Middleburg Township, Snyder County, Pennsylvania, USA | β Aragonite, β Chalcedony, β Chert, β Dolomite, β Travertine |
| National Limestone Quarry No. 2, Lime Ridge, Mount Pleasant Mills, Perry Township, Snyder County, Pennsylvania, USA | β Chert, β Dolomite, β Sphalerite |
These are possibly similar items as determined by title/reference text matching only.
